LOOP for Black Belts22. LOOP for Black BeltsIn Chapter 7 I briefly discussed the extended LOOP macro. As I mentioned then, LOOP provides what is essentially a special-purpose language just for writing iteration constructs. This might seem like a lot of bother--inventing a whole language just for writing loops. But if you think about the ways loops are used in programs, it actually makes a fair bit of sense. Any progr
